CENTRALLY CONTROLLED TELECOMMUNICATIONS EXCHANGE SYSTEMS,申请号GB19740003455-传众专利搜索

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发明名称	CENTRALLY CONTROLLED TELECOMMUNICATIONS EXCHANGE SYSTEMS
摘要
申请公布号	GB1453518(A)	申请公布日期	1976.10.27
申请号	GB19740003455	申请日期	1974.01.25
申请人	SIEMENS AG	发明人
分类号	H04Q3/00;(IPC1-7):H04Q3/54	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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